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Molecular ion rearrangements of benzenesulfonylhydrazides
Author(s) -
Kascheres Concetta,
Bravo Ruiess Van Fossen
Publication year - 1979
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210140602
Subject(s) - fragmentation (computing) , mass spectrum , kinetic energy , ion , chemistry , electron ionization , polyatomic ion , spectral line , cleavage (geology) , nitrogen , analytical chemistry (journal) , computational chemistry , organic chemistry , materials science , physics , ionization , quantum mechanics , astronomy , fracture (geology) , computer science , composite material , operating system
The mass spectra of a series of substituted benzenesulfonylhydrazides are discussed. The main fragmentation mode of these compounds corresponds to rearrangement of the molecular ion with subsequent loss of N 2 H˙ and/or N 2 H 2 . These fragmentations are confirmed by mass analysed ion kinetic energy spectra. Simple cleavage of the SN bond with retention of the charge on nitrogen is observed for all the hydrazides studied but is favoured by electron withdrawing substituents. This latter fragmentation could not be confirmed by mass analysed ion kinetic energy spectra as it is probably very rapid and occurs mainly in the source.